Review :Just got this new Pyle Overhead DVD player with a 12" screen. Had it professionally installed for $100. Bought it on Amazon. The screen is much higher resolution than most other (smaller) Overhead DVD units. The internal speakers aren't that loud, so you'd either want to use the IR headphones (which we prefer, so adults can talk while we're driving) or the built-in FM Modulator.
So far, this thing works great. Many of the Amazon and other reviews talk about it being junk, but the unit is more professional-looking than most of the other flip-down players, and it's solid with all the buttons, etc.
The unit is a bargain compared to many others currently out there (July 2011), and includes all the features you'd need.
I will update my review in a month or two, if it's still working properly.